Strength of the Ep=1.842 MeV resonance in the 40Ca(p,γ)41Sc reaction reexamined

The strength of the E-p = 1.842 MeV resonance in the Ca-40(p,gamma) Sc-41 reaction is determined with two different methods: First, by an absolute strength measurement using calcium hydroxide targets, and second, relative to the well-determined strength of the resonance triplet at E alpha = 4.5 MeV in the Ca-40(alpha,gamma) Ti-44 reaction. The present new value of omega gamma = ( 0.192 +/- 0.017) eV is 37% (equivalent to 3.5 sigma) higher than the evaluated literature value. In addition, the ratio of the strengths of the 1.842 MeV Ca-40(p,gamma)Sc-41 and 4.5 MeV Ca-40(alpha,gamma) Ti-44 resonances has been determined to be 0.0229 +/- 0.0018. The newly corrected strength of the 1.842- MeV resonance can be used in the future as a normalization point for experiments with calcium targets.